Organic Light-Emitting Display with Encapsulation and Light-Shielding Layers
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Solution Overview
Problem
The existing methods for manufacturing thin and lightweight organic light-emitting displays using glass substrates are complex and result in fragile displays, making them difficult to use effectively in mobile devices.
Innovation Solution
An organic light-emitting display design featuring a substrate with a light-emission region and a non-light-emission region, an encapsulation member with light-shielding layers and a color conversion member, and liquid repellent patterns, which reduces thickness and enhances luminescent efficiency without the need for special optical members, thereby improving flexibility and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a glass substrate is thinned mechanically or chemically to reduce thickness, then the display becomes thinner and lighter, but the manufacturing process becomes complicated and the display becomes fragile
Solution Approach 1:
The patent extracts and removes the need for thick optical films (polarizing films, phase difference films) from the display structure. By using an organic light-emitting display that generates its own light, the invention eliminates the requirement for these traditional optical components, thereby simplifying the manufacturing process while achieving thinness without mechanical or chemical thinning of glass substrates.
Solution Approach 2:
The invention changes the fundamental parameter of light generation from passive optical filtering (using thick optical films) to active light emission (using organic light-emitting materials). This parameter change enables the display to achieve thinness inherently through the nature of the light-emitting structure itself, rather than through complex thinning processes applied to traditional glass substrate-based displays.
2Length of moving object
If a glass substrate is thinned mechanically or chemically to reduce thickness, then the display becomes thinner and lighter, but the display becomes fragile
Solution Approach 1:
The invention fundamentally changes the substrate parameter from rigid glass to flexible organic materials. The organic light-emitting display structure inherently provides flexibility and robustness while maintaining thinness, eliminating the need for mechanical or chemical thinning processes that compromise glass substrate strength.
3Illumination intensity
If traditional optical members are used to achieve visibility, then the display can be seen, but the thickness increases
Solution Approach 1:
The patent extracts and eliminates the need for traditional optical members (polarizing films, phase difference films, color filters) from the display structure. The organic light-emitting display achieves visibility and color through its light-emitting properties and color conversion members, thereby reducing thickness while maintaining or improving visibility.
Solution Approach 2:
The invention uses color conversion members that convert the emitted light from the organic light-emitting layer into visible colors. This approach achieves color display and visibility without requiring traditional color filters, thereby reducing the overall thickness of the display structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves a reduced thickness and improved luminescent efficiency, enabling the creation of thin, flexible, and robust organic light-emitting displays suitable for mobile devices by eliminating the need for thick optical films and enhancing visibility through reflectance control.
Implementation Method 1
a light-shielding member including a first light-shielding layer and a second light-shielding layer, the first light-shielding layer being in a region corresponding to the non-light-emission region
Implementation Method 2
a color conversion member in a region corresponding to the light-emission region
Implementation Method 3
a first liquid repellent pattern between the light-shielding member and the color conversion member; and a second liquid repellent pattern on the second light-shielding layer
Data Source
AI summary
An organic light-emitting display and a method of manufacturing the same are provided. An organic light-emitting display includes: a substrate including a light-emission region and a non-light-emission region around the light-emission region; a display device on the light-emission region of the substrate; and an encapsulation member on the display device. The encapsulation member includes a light-shielding member including a first light-shielding layer and a second light-shielding layer, the first light-shielding layer being in a region corresponding to the non-light-emission region, and the second light-shielding layer being on the first light-shielding layer; and a color conversion member in a region corresponding to the light-emission region.